I have seen a lot of people on reddit claiming that getting a mini pc is better than an enterprise server. But when looking at the price of an N100 vs the price of a used poweredge r730xd even assuming international shipping of over $500 if you buy from eBay and don’t live in the US. Many of them build clusters that would cost more than one enterprise server, it seems like a hassle.
I live for used micro PCs from businesses. Dell micros or HP, i prefer Dell but some of the HPs have a few extra bells and whistles depending on the model. Ssd for os, nvme for storage, 64gb of ram and a 1gb nic with room for a 2.5gb nic so you can cluster and use shared storage if you need.